Dart fins

This version has 10-32 thread on the end to screw into a typical dart barrel. The threads didn't print super well, but I screwed it into a dart barrel while it was still hot and it worked very well.

***Edit
I have uploaded a new version with slightly stronger thread because I found that it was snapping off on impact. I will try printing a couple like this, and report back. If they still break, I will redesign them with a hole that a piece of threaded rod can be inserted into. I also thinne